How to find the mass number of an atom with 45 neutrons and 35 electrons?

2 elements that have properties similar to those of chlorine are

What is the density of ethane gas, C2H6 at STP

The rate of chemical changes (how fast they occur) can depend on several factors. What are two factors that can influence the rate of a chemical change? Explain how these factors might affect chemical changes.

Convert 0.36 atm to kPa

What is the iupac name for the organic compound that reacts with br2?

Researchers used a combustion method to analyze a compound used as an antiknock additive in gasoline. A 9.394 mg sample of the compound yielded 31.154 mg of carbon dioxide and 7.977 mg of water in the combustion.

The formula for binary ionic compound formed between cesium and fluorine

If the mass of a material is 76 grams and the volume of the material is 16 cm3, what would the density of the material be? g/cm3

Calculate the specific heat of a metallic element if 50.0 g of the metal need 314 joules of heat energy to raise the temperature from 25°C to 50°C.

State the relationship between the number of electrons in a carbon-nitrogen bond and carbon-nitrogen bond energy